AttackSeething Anger
Flip a number of coins equal to the number of damage counters on Machamp. This attack does 20 damage plus 10 more damage for each heads.

Machamp is Pokédex #068, generation 1 (Kanto). Machamp is a Stage 2 Fighting Pokémon with 90 HP. The card lists level 54. The card says it evolves from Machoke. In this catalog that name is Machoke (#067).
Machamp sits at 43/53 in Wizards Black Star Promos, position 43 of 53. Before it is 42 Pokémon Tower, and after it is 44 Magmar. The set belongs to the Base series. It was released on 1 July 1999. The printed size is 53, and the checklist is the same length. The listed rarity is Promo.
The attack Seething Anger lists 20+ damage. The cost is Fighting, Fighting. Flip a number of coins equal to the number of damage counters on Machamp. This attack does 20 damage plus 10 more damage for each heads. Fling is another attack lists 50 damage. The cost is Fighting, Fighting, Colorless, Colorless. If your opponent has any Benched Pokémon, he or she chooses 1 of them and switches it with the Defending Pokémon. (Do the damage before switching the Pokémon.) Weakness is Psychic ×2. Retreat cost is 3. The flavor text reads "Using its amazing muscles, it throws powerful punches that can knock its victim clear over the horizon."
Machamp (#068) has 48 other cards in the catalog. Those other cards are in 29 sets. The other printings with a release date run from 1999 to 2023. The earliest other card is Machamp 8/102 in Base (1999). That card lists 100 HP, and this one lists 90 HP. The rarity there is Rare Holo, and here it is Promo. Ken Sugimori illustrated that card, and Tomokazu Komiya illustrated this one. 48 other cards of Machamp list a different HP.
The illustrator line reads Tomokazu Komiya. I count 248 other cards in the catalog with that illustrator.
Wizards Black Star Promos set binder is where a full Wizards Black Star Promos set goes. This card fills one slot there. A generation binder holds one card of each species. Machamp can fill a slot in Generation 1 binder (Kanto). I still need this card.
Flip a number of coins equal to the number of damage counters on Machamp. This attack does 20 damage plus 10 more damage for each heads.
If your opponent has any Benched Pokémon, he or she chooses 1 of them and switches it with the Defending Pokémon. (Do the damage before switching the Pokémon.)
Using its amazing muscles, it throws powerful punches that can knock its victim clear over the horizon.
Wizards Black Star Promos, in the Base series. It was released on 1 July 1999. The printed size is 53.
43/53. It is entry 43 of 53 in this checklist.
Tomokazu Komiya. The catalog lists 248 other cards with that illustrator.
Promo.
Machamp #068, generation 1 (Kanto).
Seething Anger (20+) and Fling (50).